tips_dialog.C

Go to the documentation of this file.

/* Gxsm - Gnome X Scanning Microscopy
 * universal STM/AFM/SARLS/SPALEED/... controlling and
 * data analysis software
 * 
 * Copyright (C) 1999,2000,2001,2002,2003 Percy Zahl
 *
 * Authors: Percy Zahl <zahl@users.sf.net>
 * additional features: Andreas Klust <klust@users.sf.net>
 * WWW Home: http://gxsm.sf.net
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

/* -*- Mode: C++; indent-tabs-mode: nil; c-basic-offset: 8 c-style: "K&R" -*- */

#include <config.h>
#include <gtk/gtk.h>
#include <gnome.h>
#include <libgnome/libgnome.h>

#include <gdk/gdk.h>

#include "tips_dialog.h"
#include "wilber-stm.h"
#include "wilber-afm.h"
#include "wilber-spa.h"

#include "glbvars.h"

static int  tips_dialog_hide (GtkWidget *widget, gpointer data);
static int  tips_show_next (GtkWidget *widget, gpointer data);
static void tips_toggle_update (GtkWidget *widget, gpointer data);
static void read_tips_file(char *filename);

static GtkWidget *tips_dialog = NULL;
static GtkWidget *tips_label;
static char **    tips_text = NULL;
static int        tips_count = 0;
static int        old_show_tips;

static int        last_tip  = 0;
static int        show_tips = -1;

static gint       twc_id = 0;

gchar *gxsm_data_directory (){ 
  static gchar dd[] = PACKAGE_TIPS_DIR;
  return dd;
}

gint draw_wilber(void *pv){
        GtkWidget *preview = (GtkWidget*)pv;
  static int i=0;
  static gint w[]    = { wilberstm_width, wilberafm_width, wilberspa_width, 0 };
  static gint h[]    = { wilberstm_height, wilberafm_height, wilberspa_height, 0 };
  static gchar* d[] = { wilberstm_data, wilberafm_data, wilberspa_data, NULL };
  guchar *utemp, *src, *dest;
  gint x,y;

  if(!w[i]) i=0;
  gtk_preview_size (GTK_PREVIEW (preview), w[i], h[i]);
  utemp = g_new (guchar, w[i] * 3);
  src = (guchar *)d[i];
  for (y = 0; y < h[i]; y++)
    {
      dest = utemp;
      for (x = 0; x < w[i]; x++)
        {
          HEADER_PIXEL(src, dest);
          dest += 3;
        }
      gtk_preview_draw_row (GTK_PREVIEW (preview), utemp,
                            0, y, w[i]); 
    }
  g_free(utemp);
  ++i;
  gtk_widget_hide (preview);
  gtk_widget_show (preview);
  return TRUE;
}

void
tips_dialog_create ()
{
  GtkWidget *vbox;
  GtkWidget *hbox1;
  GtkWidget *hbox2;
  GtkWidget *bbox;
  GtkWidget *vbox_bbox2;
  GtkWidget *bbox2;
  GtkWidget *frame;
  static GtkWidget *preview;
  GtkWidget *button_close;
  GtkWidget *button_next;
  GtkWidget *button_prev;
  GtkWidget *vbox_check;
  GtkWidget *button_check;
  gchar  *   temp;

  XsmRescourceManager xrm("GUI-global","Tips");
  show_tips = xrm.GetBool("ShowTips", TRUE);
  xrm.Get("LastTip", &last_tip, "0");
  ++last_tip;

  if (tips_count == 0)
    {
      temp = g_strdup_printf ("%s" G_DIR_SEPARATOR_S "%s",
                              gxsm_data_directory (),
                              _("gxsm_tips.txt"));
      read_tips_file (temp);
      g_free (temp);
    }

  if (last_tip >= tips_count || last_tip < 0)
    last_tip = 0;

  if (!tips_dialog)
    {
      tips_dialog = gtk_dialog_new ();
      gtk_window_set_wmclass (GTK_WINDOW (tips_dialog), "tip_of_the_day", "Gxsm");
      gtk_window_set_title (GTK_WINDOW (tips_dialog), _("GXSM Tip of the Day"));
      gtk_window_set_position (GTK_WINDOW (tips_dialog), GTK_WIN_POS_CENTER);
      gtk_signal_connect (GTK_OBJECT (tips_dialog), "delete_event",
                          GTK_SIGNAL_FUNC (tips_dialog_hide), NULL);
      /* destroy the tips window if the mainlevel gtk_main() function is left */
      gtk_quit_add_destroy (1, GTK_OBJECT (tips_dialog));

      vbox = GTK_DIALOG(tips_dialog)->vbox;

      hbox1 = gtk_hbox_new (FALSE, 5);
      gtk_container_set_border_width (GTK_CONTAINER (hbox1), 10);
      gtk_box_pack_start (GTK_BOX (vbox), hbox1, FALSE, TRUE, 0);
      gtk_widget_show (hbox1);

      hbox2 = gtk_hbox_new (FALSE, 5);
      gtk_container_set_border_width (GTK_CONTAINER (hbox2), 10);
      gtk_box_pack_end (GTK_BOX (vbox), hbox2, FALSE, TRUE, 0);
      gtk_widget_show (hbox2);
      
      bbox = gtk_hbutton_box_new ();
      gtk_box_pack_end (GTK_BOX (hbox2), bbox, FALSE, FALSE, 0);
      gtk_widget_show (bbox);

      vbox_bbox2 = gtk_vbox_new (FALSE, 0);
      gtk_box_pack_end (GTK_BOX (hbox2), vbox_bbox2, FALSE, FALSE, 15);
      gtk_widget_show (vbox_bbox2);

      bbox2 = gtk_hbox_new (TRUE, 5); 
      gtk_box_pack_end (GTK_BOX (vbox_bbox2), bbox2, TRUE, FALSE, 0);
      gtk_widget_show(bbox2);

      preview = gtk_preview_new (GTK_PREVIEW_COLOR);

      draw_wilber(preview);

      frame = gtk_frame_new (NULL);
      gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
      gtk_box_pack_end (GTK_BOX (hbox1), frame, FALSE, TRUE, 3);
      gtk_container_add (GTK_CONTAINER (frame), preview);
      gtk_widget_show (preview);
      gtk_widget_show (frame);

      tips_label = gtk_label_new (tips_text[last_tip]);
      gtk_label_set_justify (GTK_LABEL (tips_label), GTK_JUSTIFY_LEFT);
      gtk_box_pack_start (GTK_BOX (hbox1), tips_label, TRUE, TRUE, 3);
      gtk_widget_show (tips_label);

      button_prev = gtk_button_new_with_label (_("Previous Tip"));
//      button_prev = gtk_button_new_from_stock (GTK_STOCK_GO_BACK);
      GTK_WIDGET_UNSET_FLAGS (button_prev, GTK_RECEIVES_DEFAULT);
      gtk_signal_connect (GTK_OBJECT (button_prev), "clicked",
                          GTK_SIGNAL_FUNC (tips_show_next),
                          (gpointer) "prev");
 
      gtk_widget_show (button_prev);

      button_next = gtk_button_new_with_label (_("Next Tip"));
//      button_next = gtk_button_new_from_stock (GTK_STOCK_GO_FORWARD);
      GTK_WIDGET_UNSET_FLAGS (button_next, GTK_RECEIVES_DEFAULT);
      gtk_signal_connect (GTK_OBJECT (button_next), "clicked",
                          GTK_SIGNAL_FUNC (tips_show_next),
                          (gpointer) "next");
      gtk_widget_show (button_next);

//      button_close = gtk_button_new_with_label (_("Close"));
      button_close = gtk_button_new_from_stock (GTK_STOCK_CLOSE);
      GTK_WIDGET_SET_FLAGS (button_close, GTK_CAN_DEFAULT);
      gtk_window_set_default (GTK_WINDOW (tips_dialog), button_close);
      gtk_signal_connect (GTK_OBJECT (button_close), "clicked",
                          GTK_SIGNAL_FUNC (tips_dialog_hide), NULL);
      gtk_widget_show (button_close);

      vbox_check = gtk_vbox_new (FALSE, 0); 
      gtk_box_pack_start (GTK_BOX (hbox2), vbox_check, FALSE, TRUE, 0);
      gtk_widget_show (vbox_check);

      button_check = gtk_check_button_new_with_label (_("Show next time"));
      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button_check),
                                    show_tips);
      gtk_signal_connect (GTK_OBJECT (button_check), "toggled",
                          GTK_SIGNAL_FUNC (tips_toggle_update),
                          (gpointer) &show_tips);
//      gtk_box_pack_start (GTK_BOX (vbox_check), button_check, TRUE, FALSE, 0);
      gtk_widget_show (button_check);

      gtk_dialog_add_action_widget (GTK_DIALOG(tips_dialog), button_check, 3);
      gtk_dialog_add_action_widget (GTK_DIALOG(tips_dialog), button_next, 1);
      gtk_dialog_add_action_widget (GTK_DIALOG(tips_dialog), button_prev, 0);
      gtk_dialog_add_action_widget (GTK_DIALOG(tips_dialog), button_close, 2);

      old_show_tips = show_tips;

      /*  Connect the "F1" help key  */
      //      gimp_help_connect_help_accel (tips_dialog,
      //                                    gimp_standard_help_func,
      //                                    "dialogs/tip_of_the_day.html");
    }

  if (!GTK_WIDGET_VISIBLE (tips_dialog))
    {
      gtk_widget_show (tips_dialog);
    }
  else
    {
      gdk_window_raise (tips_dialog->window);
    }

  twc_id = gtk_timeout_add(3000, draw_wilber, preview);

}

static int
tips_dialog_hide (GtkWidget *widget,
                  gpointer data)
{
  gtk_timeout_remove(twc_id);
  gtk_widget_hide (tips_dialog);

  /* the last-shown-tip is now saved in sessionrc */
  /*
  if (show_tips != old_show_tips)
    {
      GList *update = NULL; // options that should be updated in .gimprc
      GList *remove = NULL; // options that should be commented out

      update = g_list_append (update, "show-tips");
      remove = g_list_append (remove, "dont-show-tips");
      old_show_tips = show_tips;
      save_gimprc (&update, &remove);
      g_list_free (update);
      g_list_free (remove);
    }
  */

  XsmRescourceManager xrm("GUI-global","Tips");
  xrm.Put("LastTip", last_tip);
  xrm.PutBool("ShowTips", show_tips);

  return TRUE;
}

static int
tips_show_next (GtkWidget *widget,
                gpointer  data)
{
  if (!strcmp ((char *)data, "prev"))
    {
      last_tip--;
      if (last_tip < 0)
        last_tip = tips_count - 1;
    }
  else
    {
      last_tip++;
      if (last_tip >= tips_count)
        last_tip = 0;
    }
  gtk_label_set (GTK_LABEL (tips_label), tips_text[last_tip]);
  return FALSE;
}

static void
tips_toggle_update (GtkWidget *widget,
                    gpointer   data)
{
  int *toggle_val;

  toggle_val = (int *) data;

  if (GTK_TOGGLE_BUTTON (widget)->active)
    *toggle_val = TRUE;
  else
    *toggle_val = FALSE;
}

static void
store_tip (char *str)
{
  tips_count++;
  tips_text = (gchar**)g_realloc(tips_text, sizeof(char *) * tips_count);
  tips_text[tips_count - 1] = str;
}

static void
read_tips_file (char *filename)
{
  FILE *fp;
  char *tip = NULL;
  char *str = NULL;

  fp = fopen (filename, "rt");
  if (!fp)
    {
      store_tip (_("Your GXSM tips file appears to be missing!\n"
                 "There should be a file called gxsm_tips.txt in the\n"
                 "GXSM data directory.  Please check your installation."));
      return;
    }

  str = g_new (char, 1024);
  while (!feof (fp))
    {
      if (!fgets (str, 1024, fp))
        continue;
      
      if (str[0] == '#' || str[0] == '\n')
        {
          if (tip != NULL)
            {
              tip[strlen (tip) - 1] = '\000';
              store_tip (tip);
              tip = NULL;
            }
        }
      else
        {
          if (tip == NULL)
            {
              tip = (gchar*)g_malloc (strlen (str) + 1);
              strcpy (tip, str);
            }
          else
            {
              tip = (gchar*)g_realloc (tip, strlen (tip) + strlen (str) + 1);
              strcat (tip, str);
            }
        }
    }
  if (tip != NULL)
    store_tip (tip);
  g_free (str);
  fclose (fp);
}

---